overmes

function getRepeatArray(array) {
	var newArr = [];

    for (var j = 0; j < array.length; j++) {
         var current = array[j];
        for (var k = j + 1; k < array.length; k++) {
            if (current === array[k]) {
                array[j] = 'no';
                array[k] = 'no';
            }
        }
    }	
}

function lenSort(a, b) {
    return a.length - b.length;
}

var intersec = module.exports = function(arrays) {
    arrays.sort(lenSort);

    var arraysDicts = [];
    for (var arrayIndex = 1; arrayIndex < arrays.length; arrayIndex++) {
        var dict = {};
        for (var index = 0; index < arrays[arrayIndex].length; index++) {
            dict[arrays[arrayIndex][index]] = true;
        }
        arraysDicts.push(dict);
    }

    var res = [];
    for (var index = 0; index < arrays[0].length; index++) {
        var flag = true;
        for (var arrayIndex = 0; arrayIndex < arraysDicts.length; arrayIndex++) {
            if (!(arrays[0][index] in arraysDicts[arrayIndex])) {
                flag = false;
                break;
            }
        }
        if (flag) res.push(arrays[0][index]);
    }

    return res;
};